Observation of spatial distribution of water level around the rip field

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This study have been try to measured time averaged water level around the rip field. The measurement have been used the electromagnetic velocity meter, pressure wave gages and stereo image sensor in Uradome beach (Tottori pref.). The results show that the time averaged water level higher than around off the rip filed. And In other rip case it shows long period variation of time averaged water level.